Re: HRT on opteron / rt14 on opteron

[Geoff Levand]

Thomas Gleixner wrote:
> On Fri, 2005-09-23 at 16:04 -0700, Darren Hart wrote:
> 
>>I am trying to run all the tests in the above tarball on a 2.6.13 kernel with 
>>ktimers+tod+hrt + a hrt compatibility patch which uses the normal clocks when a 
>>_HR clock is requested since ktimers treats them the same.  I remember there 
>>used to be a run_tests script or something when this was a kernel patch, but I 
> 
> 
> do_test
> 
> 
>>am not seeing that or any kind of documentation on how to interpret the output 
>>of the tests which output numbers rather than pass/fail.  For instance:
>>
>># ./1-4
>>it value left is 3 999985323
>>What does that even mean?  
> 
> 
> Cryptic POSIX compliance test output.
> 

I beleive a number of the tests came from the Open 
POSIX Test Suite (http://posixtest.sourceforge.net/).

> 
>># ./timerlimit
>>7168: timer id = 7167
>>timer_create: Resource temporarily unavailable
>>
>>Is that a reasonable number of successfully created clocks?
> 
> 
> Depends on the number of timers available on your system. But sounds
> reasonable.
> 

If I remember correctly, you're limited by the number of
signals a process can have, and the kernel default is 
1024 per process.

-Geoff




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